Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Shift register unit and driving method thereof, shift register and display device

A shift register and transistor technology, applied in static memory, digital memory information, instruments, etc., can solve the problems of complex structure of shift registers and large space occupied by shift registers, so as to reduce the space occupied and the number of , the effect of simplifying the structure

Active Publication Date: 2015-08-26
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
View PDF5 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the shift register includes multi-stage shift register units. However, a one-stage shift register unit can only provide one control signal. To drive a row of pixel units, multi-stage shift register units need to be cascaded. The structure of the shift register is complicated, and the space occupied by the shift register is too large

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Shift register unit and driving method thereof, shift register and display device
  • Shift register unit and driving method thereof, shift register and display device
  • Shift register unit and driving method thereof, shift register and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 1 , the shift register unit provided by the embodiment of the present invention includes an input module P1, a reset module P2, a pull-down module P3, an output pull-down control module P4, and an output control module P5; the Nth-stage shift register unit in the shift register is used for illustration , wherein, the input module P1 is connected to the input signal terminal Input N, the high-level terminal VGH, the pull-up control node PU and the output control module P5, and the pull-up control node PU is the input module P1, the reset module P2, the pull-down module P3, and the output pull-down module The intersection of the control module P4 and the output control module P5, the input module P1 is used to receive the signal of the input signal terminal Input N and the signal of the high level terminal VGH;

[0027] The reset module P2 is connected to the fifth-stage output terminal OUT N+4, the current-stage output terminal OUT N of the shift register unit...

Embodiment 2

[0037] see figure 2 The specific structures of the input module P1, the reset module P2, the pull-down module P3, the output pull-down control module P4 and the output control module P5 in the first embodiment will be described in detail below.

[0038] The input module P1 includes a first transistor T1, the gate of which is connected to the input signal terminal Input N, the source of which is connected to the high level terminal VGH and the output control module P5, and the drain of which is connected to the pull-up control node PU.

[0039] The reset module P2 includes a second transistor T2 and a third transistor T3; wherein, the gate of the second transistor T2 is connected to the gate of the third transistor T3 and the output terminal OUT N+4 of the fifth stage, and its source is connected to the shift register The output terminal OUT N of the unit, the pull-down module P3, the output pull-down control module P4 and the output control module P5, the drain of which is co...

Embodiment 3

[0055] see Figure 4 , the present invention also provides a kind of shift register, and this shift register comprises the shift register unit in the above-mentioned embodiment 1, 2 of multistage, wherein, the output end of this stage of the shift register unit of the previous stage is connected to the next stage The input signal terminal of the shift register unit. For example, if Figure 4 As shown, the output terminal OUT 1 of the first-stage shift register unit UNIT1 is connected to the input signal terminal Input 2 of the second-stage shift register unit UNIT2.

[0056] Further, the shift register includes N stages of shift register units in the first and second embodiments above, and N is an integer greater than or equal to 4; wherein, the first clock signal terminal CL1 of the i-th shift register unit is connected to The first clock signal terminal CL1 of the shift register unit of the i+2 stage all inputs the first clock signal, and the first clock signal terminal CL...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a shift register unit and a driving method thereof, a shift register and a display device, relates to the technical field of display, and solves the problems of complex structure and overlarge occupation space of the shift register. The shift register unit includes an input module used for receiving signals from an input signal end and a high-level end, a reset module used for resetting an output end of the shift register unit and a pull-up control node, a drop-down module used for discharging the pull-up control node and the output end of the shift register unit, an output drop-down control module used for generating power supply enable signals and power supply signals, and an output control module used for generating gate drive signals and outputting power supply enable signals, power supply signals and gate drive signals. The shift register unit provided by the invention is applied to the display device.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a shift register unit, a driving method thereof, a shift register and a display device. Background technique [0002] In a display device, a pixel array includes gate scan lines and data lines that criss-cross. Wherein, in order to realize progressive scanning of the pixel array, a gate driving circuit is usually used to drive the pixel units in the pixel array. In the prior art, the gate drive circuit often adopts the GOA (Gate Driver on Array, array substrate row drive) design to integrate the TFT (Thin Film Transistor, thin film field effect transistor) gate switch circuit on the array substrate of the display panel to form For the scanning drive of the display panel, the gate drive circuit integrated on the array substrate using GOA technology is also called a shift register. The shift register needs to provide multiple control signals to drive a row of pixel units. [000...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G11C19/28
CPCG09G3/20G09G3/3677G09G2230/00G09G2300/0408G09G2310/0202G09G2310/0286G11C19/28G09G3/007G09G3/3674G11C19/287
Inventor 张玉婷
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com